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Underwater Blasting

When a charge of high explosive is detonated underwater, the material of the explosive is converted into a gas at a very high temperature and pressure. Following the detonation a waterborne shock wave radiates away from the charge. Near to the charge the shockwave may cause a momentary rise of pressure above the local ambient pressure, or “overpressure”, of thousands of kPa, which can cause environmental damage to humans or marine animals in the area.

Subacoustech Environmental have undertaken numerous measurements and assessments of the impact of underwater blasting on marine life and local sensitive sites.

Details of the research studies undertaken by Dr Jeremy Nedwell (Technical Director) along with other papers and guidelines can be found in ourĀ published papers and reports.

The main environmental issues divide into two classes:

- the effects on humans

- the effects on fish

Contact us for more information about our experience of predicting, measuring and assessing the impact of underwater blasting on humans and underwater wildlife.